#include <cstdio>
#include <stdio.h>
#include <string>

int main()
{
        // ===== 问题 1: 未使用的变量 =====
        int unused_count;     // clang-tidy: unused variable
        int temp_value = 100;      // clang-tidy: unused variable
        
        // ===== 问题 2: C 风格类型转换 =====
        double value = 3.14159;
        int result = (int)value;   // ❌ C-style cast
        // 应该用: static_cast<int>(value)
        
        printf("Result: %d\n", result);
        // return 0;
        int a, b;
        int c = a + b;
        printf("Result: %d\n", c);
}
